I am getting php session error on my live developed using codeigniter 2.0
A PHP Error was encountered Severity: Warning Message: session_start() [function.session-start]: open(/var/lib/php/session/sess_vqp5n2k3f45mjqbh4sudkfesa6, O_RDWR) failed: Permission denied (13) Filename: libraries/phpsession.php Line Number: 8
Not getting exactly what it is.
Check the permissions on /var/lib/php/session (which appears to be your current session path). Specifically, the owner and group. It needs to be accessible by the web server. See this post, showing a similar issue that was a result of switching web servers without changing the ownership.
Check the permissions on your session_start path you configured in php.ini. That look slike your issue